The BVB goalkeeper believes his side should have been comfortable before a 1-1 derby draw at Schalke ended with a questionable handball claim

Borussia Dortmund goalkeeper Roman Burki conceded Marc Bartra could have been punished for handball in the penalty area as the 150th Revierderby with Schalke ended 1-1.

Pierre-Emerick Aubameyang's 24th goal in as many Bundesliga appearances this season gave Dortmund an early second-half lead but Thomas Tuchel's team could not make their superiority weigh any more heavily.

Left-back Thilo Kehrer struck 13 minutes from time, netting a first goal of his senior career with aplomb, and Dortmund were the side under pressure from that point as the noise levels ramped up at Veltins Arena.

Schalke were furious referee Felix Zwayer failed to point to the spot, with head coach Markus Weinzierl sent to the stands for his protests, but Burki felt his team-mate's infringement was accidental and deserved to go unpunished.

"I saw that the ball went to his hand but I think he could not do anything. It was so fast," he said. "He couldn't take the arm away."

Burki was disappointed to see Dortmund squander their lead, meaning they remain in the fourth and final Champions League qualification spot behind Hoffenheim.